Soil samples found barium and lead levels above legal limitsFindings could hike cleanup costs to $50m at proposed siteAn environmental report poses a new problem for the proposed site of David Beckham’s Major League Soccer stadium in Miami: Tests show the soil is far more toxic than expected.According to the Miami Herald, the analysis found arsenic contamination reaching more than twice the legal limit and hazardous debris in surface-level soil samples at the Melreese golf course, where people have played for more than 50 years. The 131-acre site is being considered for a sprawling $1bn commercial and stadium complex that would be home ground for Beckham’s MLS team, Inter Miami.